Patent attributes
An automatic container coupling tool is disclosed, such coupling tool includes a coupling platform, a bottom engager and a top guiding protrusion oppositely extended from the coupling platform, the bottom engager has an engager neck, a pair of projecting lug extended from the engager neck to form a pair of holding cavity between the coupling platform and the projecting lugs, once the bottom engager is inserted into a corner fitting housing of a lower container, the bottom engager is rotated allowing the ceiling wall inserted into the holding cavity. The top guiding protrusion has a front guiding slope and a rear retaining shoulder, such that after the bottom engager is interlocked with the lower container, an upper container is perched onto the coupling tool, the opening edge of the bottom corner housing of the upper container will bias against the front guiding slop thus rearwardly shift the top guiding protrusion to snap onto the corner housing so as to couple the upper container onto the coupling tool as well.
